Bearmouth Fishing Access Site offers a developed boat ramp and parking facilities on the Clark Fork River, filling a critical 37-mile gap between upstream and downstream boat launches.

The site features a gravel parking area (approximately 12 stalls), combination gravel and concrete boat ramp, vault latrine, and day-use only access located just 0. 1 miles north of I-90 Exit 138, making it easily accessible for both anglers and paddlers.